You are using the wsl 2 backend so resource limits are managed by windows

File: desktop/windows/index.md
We have the line

Disk image size: Specify the size of the disk image.

In docker desktop it said

You are using the WSL 2 backend, so resource limits are managed by Windows.

You can configure limits on the memory, CPU, and swap size allocated to WSL 2 in a .wslconfig file.

Now in microsoft wsl docs, there are no where to be found that how I can change the size of disk image ?
So how, where can I change these resource ?

In my docker desktop images tab, it said the total size is 2.27GB (why 2.27, I don’t know), even after add wslconfig file with memory=4GB # Limits VM memory, that doesn’t change

1

wsl --shutdown

Наверх

Перейти к контенту

As the title reads, I’m trying to assign more memory to my container. I’m using an image from docker hub called «aallam/tomcat-mysql» in case that’s relevant.

When I start it normally without any special flags, there’s a memory limit of 2GB (even though I read that memory is unbounded if not set)

Here are my docker stats

CONTAINER           CPU %               MEM USAGE / LIMIT       MEM %               NET I/O             BLOCK I/O           PIDS
ba57d6c9e9d2        0.22%               145.6 MiB / 1.952 GiB   7.29%               508 B / 508 B       0 B / 6.91 MB       68

I tried setting memory explicitly like so but with same results

docker run -d --memory=10g --memory-swap=-1 -e MYSQL_PASSWORD=password -p 3307:3306 -p 8081:8080 aallam/tomcat-mysql

I’ve read that perhaps the VM is what’s restricting it. But then why does docker stats show that container size limit is 2GB?

mohan08p

5,0301 gold badge28 silver badges36 bronze badges

asked Jun 13, 2017 at 23:59

That 2GB limit you see is the total memory of the VM (virtual machine) on which docker runs.

If you are using Docker Desktop you can easily increase it from the Whale 🐳 icon in the task bar, then go to Preferences -> Advanced:

Картинка с сайта: windowsa.ru

But if you are using VirtualBox behind, open VirtualBox, Select and configure the docker-machine assigned memory.

See this for Mac:

https://docs.docker.com/desktop/settings/mac/#advanced

MEMORY
By default, Docker for Mac is set to use 2 GB runtime memory, allocated from the total available memory on your Mac. You can increase the RAM on the app to get faster performance by setting this number higher (for example to 3) or lower (to 1) if you want Docker for Mac to use less memory.

For Windows:

https://docs.docker.com/desktop/settings/windows/#advanced

Memory — Change the amount of memory the Docker for Windows’ Linux VM uses

answered Jun 14, 2017 at 0:15

RobertRobert

33.7k8 gold badges90 silver badges94 bronze badges

9

Allocate maximum memory to your docker machine from (docker preference -> advance )

Screenshot of advance settings:

Картинка с сайта: windowsa.ru

This will set the maximum limit docker consume while running containers. Now run your image in new container with -m=4g flag for 4 gigs ram or more. e.g.

docker run -m=4g {imageID}

Remember to apply the ram limit increase changes. Restart the docker and double check that ram limit did increased. This can be one of the factor you not see the ram limit increase in docker containers.

aschipfl

33.7k12 gold badges54 silver badges99 bronze badges

answered Dec 12, 2018 at 12:45

If you want to change the default container and you are using Virtualbox, you can do it via the commandline / CLI:

docker-machine stop
VBoxManage modifyvm default --cpus 2
VBoxManage modifyvm default --memory 4096
docker-machine start

answered Jan 28, 2018 at 2:05

BrentBrent

1,3341 gold badge15 silver badges22 bronze badges

Screen shots for Docker Desktop V3.3.3 (Mac)

Картинка с сайта: windowsa.ru

answered Jun 17, 2021 at 3:11

Derek SoikeDerek Soike

11.3k3 gold badges79 silver badges74 bronze badges

2

File: desktop/windows/index.md
We have the line

Disk image size: Specify the size of the disk image.

In docker desktop it said

You are using the WSL 2 backend, so resource limits are managed by Windows.

You can configure limits on the memory, CPU, and swap size allocated to WSL 2 in a .wslconfig file.

Now in microsoft wsl docs, there are no where to be found that how I can change the size of disk image ?
So how, where can I change these resource ?

In my docker desktop images tab, it said the total size is 2.27GB (why 2.27, I don’t know), even after add wslconfig file with memory=4GB # Limits VM memory, that doesn’t change

As the title reads, I’m trying to assign more memory to my container. I’m using an image from docker hub called «aallam/tomcat-mysql» in case that’s relevant.

When I start it normally without any special flags, there’s a memory limit of 2GB (even though I read that memory is unbounded if not set)

Here are my docker stats

CONTAINER           CPU %               MEM USAGE / LIMIT       MEM %               NET I/O             BLOCK I/O           PIDS
ba57d6c9e9d2        0.22%               145.6 MiB / 1.952 GiB   7.29%               508 B / 508 B       0 B / 6.91 MB       68

I tried setting memory explicitly like so but with same results

docker run -d --memory=10g --memory-swap=-1 -e MYSQL_PASSWORD=password -p 3307:3306 -p 8081:8080 aallam/tomcat-mysql

I’ve read that perhaps the VM is what’s restricting it. But then why does docker stats show that container size limit is 2GB?

mohan08p

5,0301 gold badge28 silver badges36 bronze badges

asked Jun 13, 2017 at 23:59

That 2GB limit you see is the total memory of the VM (virtual machine) on which docker runs.

If you are using Docker Desktop you can easily increase it from the Whale 🐳 icon in the task bar, then go to Preferences -> Advanced:

Картинка с сайта: windowsa.ru

But if you are using VirtualBox behind, open VirtualBox, Select and configure the docker-machine assigned memory.

See this for Mac:

https://docs.docker.com/desktop/settings/mac/#advanced

MEMORY
By default, Docker for Mac is set to use 2 GB runtime memory, allocated from the total available memory on your Mac. You can increase the RAM on the app to get faster performance by setting this number higher (for example to 3) or lower (to 1) if you want Docker for Mac to use less memory.

For Windows:

https://docs.docker.com/desktop/settings/windows/#advanced

Memory — Change the amount of memory the Docker for Windows’ Linux VM uses

answered Jun 14, 2017 at 0:15

RobertRobert

33.7k8 gold badges90 silver badges94 bronze badges

9

Allocate maximum memory to your docker machine from (docker preference -> advance )

Screenshot of advance settings:

Картинка с сайта: windowsa.ru

This will set the maximum limit docker consume while running containers. Now run your image in new container with -m=4g flag for 4 gigs ram or more. e.g.

docker run -m=4g {imageID}

Remember to apply the ram limit increase changes. Restart the docker and double check that ram limit did increased. This can be one of the factor you not see the ram limit increase in docker containers.

aschipfl

33.7k12 gold badges54 silver badges99 bronze badges

answered Dec 12, 2018 at 12:45

If you want to change the default container and you are using Virtualbox, you can do it via the commandline / CLI:

docker-machine stop
VBoxManage modifyvm default --cpus 2
VBoxManage modifyvm default --memory 4096
docker-machine start

answered Jan 28, 2018 at 2:05

BrentBrent

1,3341 gold badge15 silver badges22 bronze badges

Screen shots for Docker Desktop V3.3.3 (Mac)

Картинка с сайта: windowsa.ru

answered Jun 17, 2021 at 3:11

Derek SoikeDerek Soike

11.3k3 gold badges79 silver badges74 bronze badges

2

Under some circumstances, you might want to change the folder that stores your Docker images and containers. For example, you are running Docker Desktop on a Windows laptop or a Macbook with only 256GB or 512GB of storage and it is almost out of free space. In this case, you can move your images and containers to a bigger drive or external storage.

By default, Docker Desktop stores your images and containers at:

• C:/ProgramData/DockerDesktop/vm-data on Windows
• /Users/<your username>/Library/Containers/com.docker.docker/Data/vms/0/data on Mac

Important Note: If you’re using WSL (Windows Subsystem for Linux) 2 Backend, see the later section of this article

The Steps

If you’re running Docker Desktop on a Mac or a Windows computer (without using WSL 2 Backend), then you can change this location by following the steps below:

1. Go to your Docker Desktop dashboard and select Settings:

Картинка с сайта: windowsa.ru

2. Navigate to Resources > Advanced and scroll down a little bit to see the Disk image location area:

Картинка с сайта: windowsa.ru

3. Click on the Browse button and choose a new directory for your images and containers:

Картинка с сайта: windowsa.ru

4. Last but not least, click the Apply & Restart button to finish:

Картинка с сайта: windowsa.ru

Docker Desktop will take care of the rest.

The Steps For Windows Users with WSL 2 Backend

A large portion of Windows users run Docker Desktop on WSL 2 (the Windows Subsystem for Linux built by Microsoft) due to various benefits such as:

• Leveraging Linux workspaces and avoiding having to maintain both Linux and Windows build scripts
• Improving file system sharing, and boot time and allowing access to some cool new features for Docker Desktop

To change containers and images directory in this case, walk through the following steps:

1. Exit Docker Desktop

2. Shutdown WSL by executing this command:

wsl --shutdown

3. Export Docker Desktop data to your home screen (you can choose another place if you like):

wsl --export docker-desktop-data C:\Users\YOURUSERNAME\Desktop\data.tar

4. Unregister current Docker Desktop data:

wsl --unregister docker-desktop-data

5. Import the exported data to your desired location (for example, a folder named kindacode in the hard drive E):

wsl --import docker-desktop-data E:\kindacode\ C:\Users\YOURUSERNAME\Desktop\data.tar --version 2

You might have to perform this step twice if you run into some network trouble.

Further reading:

• How to Install Docker Compose on Ubuntu 21.04 and 21.10
• Deleting unnecessary Images and Containers in Docker
• Docker: How to Retag an Image
• Docker: Execute Commands inside a Running Container
• Using Docker Compose to speed up WordPress development
• Using Docker Compose with Node.js and MongoDB

You can also check out our Docker topic page for the latest tutorials, examples, tips, and tricks.

Другие наши интересноые статьи:

You are about to be logged off windows 7

Yandex музыка приложение для windows

Yota для windows 10 программа

Yandex почта приложение для windows 10

Yota access скачать для windows

WINDOWS

Docker has revolutionized the way developers build, ship, and run applications through containerization. However, configuring Docker, especially regarding resource limits like memory allocation, differs significantly between platforms such as Windows, Mac, and Linux. In this article, we will explore how to set up configuration settings like memory limits specifically for Docker running on Windows and Windows Subsystem for Linux 2 (WSL2).

Understanding Docker on Windows and WSL2

Docker Desktop for Windows enables the use of containers on Windows systems. It leverages WSL2 to run a lightweight Linux kernel, which is crucial for compatibility with Linux containers.

Key Differences:

• Docker on Windows uses a Hyper-V or WSL2 backend.

• Docker on Mac employs a dedicated virtual machine.

• Docker on Linux operates natively without the need for virtualization.

Due to these architectural differences, setting memory limits and other configurations varies across these operating systems.

Installing Docker Desktop on Windows and WSL2

Before diving into the configuration details, you need Docker Desktop installed on both Windows and WSL2.

Installation Steps:

1. Download Docker Desktop:

   • Visit the Docker Hub.

   • Download Docker Desktop for Windows.

2. Enable WSL2 Integration:

   • During installation, ensure to select WSL2 as your backend.

   • After installation, go to the Docker Desktop settings, and in the ‘Resources’ tab, choose the WSL Integration option.

3. Install WSL2:

   • Open PowerShell as Administrator and run:

   • Verify installation by launching a WSL terminal and typing:

Final Step:

Restart your system to ensure all changes take effect.

Configuring Memory Limits in Docker for Windows

Docker’s settings can be adjusted to manage CPU and memory allocation effectively.

Step-by-Step Configuration:

1. Open Docker Desktop:

   • Right-click the Docker icon in the system tray and select “Settings.”

2. Navigate to Resources:

   • In the left sidebar, click on “Resources.”

   • Here, you will see options to manage CPU, Memory, and Swap.

3. Adjust Memory Limits:

   • Use the slider or input box to set the ‘Memory’ limit according to your needs.

4. Apply Changes:

   • Click on “Apply & Restart” to make the changes take effect.

Example Configuration:

Assume you have a machine with 16 GB RAM and want to allocate 4 GB to Docker:

• Set the memory limit to 4096 MB.

Configuring Memory Limits in Docker on WSL2

For users of Docker within a WSL2 environment, you must configure memory limits differently.

Configuring Docker in WSL2:

1. Create a .wslconfig File:

   • Navigate to your home directory in Windows (C:\Users\<username>).

   • Create or edit the file named .wslconfig.

2. Add Configuration Settings:
   Here’s an example configuration to allocate resources:

   [wsl2]
   memory=4GB # Limits memory to 4 GB
   processors=2 # Limits CPU cores to 2
   swap=8GB # Configure swap if necessary
   

3. Save and Exit:
   After making changes, save the .wslconfig file.

4. Restart WSL2:
   To apply changes, run the following command in PowerShell:

Verifying Configuration:

To check if changes were applied, open a WSL terminal and run:

This command should reflect the new memory limit.

Practical Advice for Configuring Docker

• Assess Your Resources: Before setting limits, evaluate the system resources to avoid affecting performance negatively.

• Monitor Performance: Use tools like docker stats to monitor running containers’ resource utilization.

• Adjust as Needed: Periodically review and modify allocations based on application demands.

Conclusion

Configuring memory limits for Docker on Windows and WSL2 is essential for optimizing resource usage and ensuring that your containers run smoothly. Understanding the differences in configuration practices between Docker on Windows and WSL2 can help you make informed decisions to improve your development workflow.

Important Keywords:

• Docker memory limits

• WSL2 configuration

• Docker on Windows

• Docker resources management

• Install Docker Desktop

By following the steps provided in this article, you can successfully set up and manage memory limits in Docker, tailoring your containerized applications’ performance to meet your development requirements effectively.

Suggested Articles